<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box1{
            text-align: center;
            width:500px;
            background: yellow;
        }
        .box2{
            text-align: center;
            width:500px;
            background: rgb(28, 230, 119);
        }
        .box3{
            width:500px;
            height: 100px;
            background-color: rgb(206, 54, 214);
            line-height: 100px;
            text-align: center;
        }
        .box4{
            width:500px;
            height:100px;
            background-color: rgb(24, 197, 142);
            line-height:40px;
        }
    </style>
</head>
<body>
    <div class="box1">hello</div>
    <div class="box2">Lorem ipsum dolor sit amet consectetur 
        adipisicing elit. Rem error alias excepturi eius assumenda 
        esse laboriosam eligendi numquam asperiores cumque, 
        beatae quae neque ad ipsam in, reprehenderit culpa, 
        officiis dolorum?
    </div>
    <div class="box3">你好</div>
    <div class="box4">
        Lorem ipsum dolor sit amet consectetur adipisicing elit. 
        Reprehenderit quae dolorem sapiente optio distinctio ea 
        nihil commodi praesentium, iure dignissimos, quod, 
        voluptatum at reiciendis eaque sit. 
        Doloribus minima modi accusamus.
    </div>
</body>
</html>